In October 2024, we carried out a heavy moss removal and biocide roof treatment on a residential property in Northampton. The roof had extensive moss growth across multiple sections, so the priority was safe access, careful removal, and a treatment plan designed to keep regrowth under control.
We used scaffold towers for stable access and telescopic scraping tools to remove moss without walking on the tiles—helping prevent unnecessary breakage and surface damage. After scraping, the roof was treated with a biocide wash, which continues working gradually over time.
Severe moss doesn’t just look bad—it holds moisture, blocks drainage paths, and can mask underlying tile issues. On this roof, the main challenges were:
We set up scaffold towers to create a stable working position for safe, controlled cleaning at roof level.
We removed moss using appropriate scraping tools attached to telescopic poles.
Key rule on this job: we did not walk on the tiles. That approach helps protect the roof from unnecessary cracking and keeps the process controlled.
After scraping, we applied a biocide solution to wash and treat the tiles. This stage is designed to slow algae regrowth and improve long-term results.
(As always, speed of improvement varies with shade, nearby trees, roof aspect, and local conditions.)
During cleaning we flagged cracked tiles for the client to replace. Where tiles are safely accessible, we can replace some directly; otherwise we’ll advise using a qualified roofer, especially if repairs require lifting surrounding courses or working in more complex roof areas.
If your roof is heavily mossed and you want a safe removal method that doesn’t involve walking directly on tiles, we can assess access options and recommend the right treatment plan.
